Hello. Thank you for the interesting publication. I want to say that I invested some of my savings in bitcoins. However, because of the instability of the exchange rate and the constant sharp jumps, it is very difficult to increase profits. Personally, it seems to me that bitcoin is similar to the pump and drain scheme. Although still remains the most expensive digital currency. However, thanks to the publication https://promdevelop.ru/vidy-kriptova...a-mezhdu-nimi/ I think that bitcoin will again cost $ 20 thousand.